texas rancher bob mccann says his herd is smaller than it used to be. >> it's going to be hard to rebuild the herd. >> reporter: curt mallory says it won't just impact american food costs but global supply. >> if anybody has a marginal or total crop failure, it's going to start impacting worldwide the availability of those commodities on the food shelf. it's that critical. i've never seen it in my lifetime. >> reporter: the national weather service isn't providing much hope. its new spring forecast calls for warmer than normal temperatures with little relief from the drought. for "nightly business report," jane wells, moore park, california. >>> and coming up, first smoking, then cholesterol levels. now one company is asking employees to weigh in. or pay up for health insurance. is it a motivation to get healthy or an invasion of privacy? first, though, let's attack a look at how the international markets finished the day. >>> we don't have to tell you the cost of health care is skyrocketing, especially for big companies providing coverage for thousands of workers. but there's a growing c